Charles had four points in the final minute for the Mystics (3-5), a wide-open layup off a midcourt inbounds play at 22.3 seconds and a pair of free throws with 6.4 seconds left.
Myisha Hines-Allen added 19 puntos, Ariel Atkins scored 17, and Natasha Cloud had 11 puntos, eight assists and a career-high six steals.
Washington took the lead for good on a run of 12 straight points capped by Charles’ three-point play and Hines-Allen’s 11-foot jumper to make it 59-48. The Mystics extended to their largest lead at 68-50 late in the third quarter.
Napheesa Collier had 22 points and nine rebounds for the Lynx (3-5). Sylvia Fowles scored 15 puntos, and Layshia Clarendon had 14 puntos, seven rebounds and six assists. Dangerfield, who scored 10 puntos, hit a half court shot for the Lynx at the third-quarter buzzer.